Keeling Curve – Atmospheric concentrations of CO2 continue to climb, so don’t forget to use the updated curve published by Scripps Oceanographic Institute. As of December 30: 407.35 ppm. A new animated version is also available at the same site.

‘Does Climate Change Have A Place In The English Classroom?’ in Council Chronicle, published by National Council of Teachers of English (December 2017).
This article is also available on the authors’ website [PDF].